In a world where individuals can purchase and swap hearts, you play as a rogue 'Heart Thief,' who stumbles upon a black market heart trade. After accidentally acquiring a heart with the memories attached to it, you find yourself thrust into the emotional chaos of its original owner – whose life is intertwined with a faction that will stop at nothing to retrieve their prized possession. As you navigate through this emotionally charged landscape, you'll face choices that challenge your sense of morality, the fragments of another's past, and the chilling truth about love, sacrifice, and identity.